More info
Datasheet
| Minimum Tank Size | 800 litres / 211.34 US gallons |
| Maximum Size | 25cm / 9.84inches |
| Reef Compatible | Always reef safe |
| Temperament | Might be aggressive towards similar species |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Orangeshoulder Tang, scientifically known as Acanthurus olivaceus, is a species in the Acanthuridae family. It exhibits juvenile mimicry, resembling various angelfish species, making identification challenging from images of adult fish.
Aquarium Suitability
With an average hardiness level, these fish are suitable for aquariums with a minimum tank size of 800 liters. They require a well-established environment with ample space for swimming and hiding places, especially when introduced to a new setting.
Care and Hardiness
Orangeshoulder Tangs demand a tank that meets their need for sufficient swimming room and hiding spots. Adequate algae-based nutrition is vital for their immune system health. Regular feeding of algae-rich foods such as plant-based flakes or Nori seaweed is crucial for their well-being.
Reef Suitability
Reef enthusiasts will find the Orangeshoulder Tang to be reef safe, as they rarely bother corals or invertebrates. However, larger and more aggressive species like Blue Tangs may be an exception.
Aquarium Setup
When housed in an aquarium, these fish spend their time swimming around and grazing on algae-covered rocks. It is essential to provide enough algae for natural feeding behaviors. Their docile nature towards other fish makes them a suitable addition, as long as a hierarchy is established with caution.
Behaviour
In the aquarium, Orangeshoulder Tangs typically exhibit non-aggressive behavior towards other fish, establishing a hierarchy if multiple specimens are present. Adequate hiding spaces and a well-maintained algae-filled environment contribute to their overall well-being.
Feeding and Diet
Their diet mainly consists of small crustaceans like krill, mysis, and artemia. Maintaining a balanced diet that includes macroalgae (e.g., seaweed/nori) and microalgae (e.g., spirulina) is essential to their nutritional needs.
Habitat and Distribution
Native to the Pacific Ocean, Orangeshoulder Tangs are found from the Christmas Island to the Hawaiian Islands. They thrive in areas with an abundance of algae-rich rocks and stones, where they can graze and swim freely.